public Composition Generate()
{
int trackNo = composition.Tracks.Count;
Composition newComp = new Composition();
Parallel.For(0, trackNo, i =>
{
PatchNames instrument = composition.Tracks[i].Instrument;
Console.WriteLine("Generating track {0} with instrument {1}", i, instrument.ToString());
var melodySeq = composition.Tracks[i].GetMainSequence() as MelodySequence;
MarkovChainGenerator chain = new MarkovChainGenerator(instrument,2, melodySeq.Length);
chain.AddMelody(melodySeq);
var notes = chain.Generate();
Track track = new Track(instrument, (byte)(i + 1));
track.AddSequence(notes);
newComp.Add(track);
//var notes = trackGenerator.Generate();
Console.WriteLine("Done Generating track {0}", i);
});
return newComp;
}
public GeneticGenerator(IFitnessFunction fitnessFunction, MelodySequence base_seq = null)
{
this.fitnessFunction = fitnessFunction;
this.base_seq = base_seq;
this.MaxGenerations = 2000;
if (base_seq != null)
CreateUniques();
if (base_seq != null)
{
var mark = new MarkovChainGenerator(2);
mark.AddMelody(base_seq);
GPCustomTree.generator = mark;
}
}
public GeneticGenerator(IFitnessFunction fitnessFunction, PatchNames instrument = PatchNames.Acoustic_Grand, CompositionCategory cat=null)
{
this.fitnessFunction = fitnessFunction;
this.cat = cat;
this.MaxGenerations = 1000;
this.PrintProgress = true;
this.instrument = instrument;
if (cat != null)
{
// Markov generator
var mark = new MarkovChainGenerator(instrument, 2);
// Allowed notes
HashSet<Durations> durs = new HashSet<Durations>();
HashSet<int> fullPitches = new HashSet<int>();
foreach(var c in cat.Compositions)
{
if (c.Tracks.Count < 1)
continue;
var cloneMel = (c.Tracks[0].GetMainSequence() as MelodySequence).Clone() as MelodySequence;
cloneMel.StandardizeDuration();
mark.AddMelody(cloneMel);
foreach (var n in cloneMel.Notes)
{
durs.Add(NoteGene.GetClosestDuration(n.Duration));
fullPitches.Add(n.Pitch);
}
avgLength += cloneMel.Length;
}
avgLength /= cat.Compositions.Length;
GPCustomTree.generator = mark;
NoteGene.AllowedDurations = durs.ToArray();
NoteGene.AllowedFullPitches = fullPitches.ToArray();
}
}
